Renfro your the man for this job lol, can i pull this off with no experience.
I suppose that depends on how handy you are with tools. Common sense and a good set of tools goes a long way. No clue on the videos.
For your wire you can use 8-2 cable. You don't need the neutral so we will use the white wire for a phase and mark it on both ends with red or black electrical tape.
Steps, well pretty simple there:
Mount the outside disconnect (probably wanna drill for the wire first making sure you don't drill into anything you don't want to).
Run the cable from the disconnect back to the switch panel (breaker box). Depending on how you intend to run the cable you will either want proper staples for non-metallic (NM) cable or if the cable is exposed (not in the attic or walls) you should consider using metal clad (MC) cable or install conduit.
Use appropriate box connectors on each end where the cable enters the box (the little black plastic snap in ones work well in the back of a disconnect).
Terminate the wires in the disconnect.
Terminate the wires in the switch panel (bare to ground bus, black and white (with red or black indicator) to the breaker.
Stab the breaker (usually you put the outside edge of the breaker thats closest to the terminal screws) under a little plastic tab and rock the breaker down onto the bus connectors).
